Results 61 to 70 of about 90,798 (359)

Polyterthiophenes incorporating 3,4-difluorothiophene units : application in organic field-effect transistors [PDF]

open access: yes, 2010
Two terthiophenes bearing core fluorinated thienyl units have been synthesised as potential semiconductor materials for organic field-effect transistors.
Crouch, David J.   +4 more
core   +1 more source

Interplay of Backbone Conformation, Morphology and Thermoelectric Properties of Benzodifuranone‐Isatin Acceptor Polymers

open access: yesAdvanced Electronic Materials, EarlyView.
Modification of polymer backbone via halogenation and comonomer selection leads to conjugated backbones of different stereoelectronic properties, thin film morphologies, and electrical characteristics. The interplay of conformational isomerism, coplanarity, backbone curvature, backbone orientation, and ordering in thin films, electrical conductivity ...
Diego R. Hinojosa   +11 more
wiley   +1 more source

Valorisation of Algerian agro-wastes as renewable biofuels: Impact of using microwave-assisted method on lipid extraction

open access: yesRevue des Énergies Renouvelables
Fossil fuels are the largest contributor to climate change, representing about 90% of carbon dioxide emissions. Given the environmental impact and the high prices around the world, finding an alternative solution has become necessary at the present time.
Fairouz Bakhouche   +2 more
doaj   +1 more source

Effect of process variables on the oil extraction from passion fruit seeds by conventional and non-conventional techniques - doi: 10.4025/actascitechnol.v36i1.15217

open access: yesActa Scientiarum: Technology, 2014
The effects of process variables on the oil extraction from passion fruit seeds by three techniques, ultrasound shaker, and soxhlet, and of environment-friendly solvents are evaluated.
Ricardo Cardoso de Oliveira   +3 more
doaj   +1 more source

Current Landscape: Use of Supercritical CO2 in the Wood Industry

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
The application of supercritical carbon dioxide (scCO2) to successfully dewater as well as extract resin from wood is becoming increasingly popular due to its greener and less energy‐intensive approach. With world focus shifting to developing methods with greater efficiency while decreasing harm to the environment, scCO2 applications have begun to set ...
Anthony Dahdah, Subashani Maniam
wiley   +1 more source

Alternative methods for the wool wax extraction from wool scouring wastes [PDF]

open access: yes, 2007
Las fibras de lana, tras obtenerlas de las ovejas y antes de ser procesadas industrialmente, han de ser lavadas. Este proceso genera residuos altamente contaminantes que pueden obtenerse en dos formas diferentes, una fase líquida y una fase sólida. Ambas
Carrillo, Fernando   +3 more
core   +3 more sources

Record‐High Solar‐to‐Vapor Generation Efficiency via Synergistic Optimization of Absorption and Nonradiative Decay in Quinoid–Donor–Acceptor Polymers for Solar–Thermal Applications

open access: yesAggregate, EarlyView.
This work pioneers a quinoid–donor–acceptor polymer strategy that synergistically broadens solar absorption and boosts nonradiative decay for efficient photothermal conversion. The resulting polymer, PAQM‐TBz, achieves record‐high solar‐to‐vapor efficiency (97.3%) and enables water–electricity cogeneration, offering a new paradigm for solar–thermal ...
Cheng Liu   +5 more
wiley   +1 more source

Low extractable wipers for cleaning space flight hardware [PDF]

open access: yes
There is a need for low extractable wipers for solvent cleaning of space flight hardware. Soxhlet extraction is the method utilized today by most NASA subcontractors, but there may be alternate methods to achieve the same results.
Gross, Frederick C., Tijerina, Veronica
core   +1 more source

Determination of capsaicinoids in peppers by microwave-assisted extraction-high-performance liquid chromatography with fluorescence detection [PDF]

open access: yes, 2006
En este trabajo se ha desarrollado una técnica de extracción de capsaicinoides en pimientos mediante la extracción asistida por ...
Agrawal   +33 more
core   +2 more sources

Electromembrane Extraction for Multiclass Pesticide Assessment in Soil Matrices: Sustainable Analytical Insights

open access: yesAnalysis &Sensing, EarlyView.
The U‐shaped electromembrane extraction with liquid chromatography‐mass spectrometry enables rapid multiclass pesticide screening in soil. The 15 min, low‐solvent workflow achieves high recoveries and robust linearity, while AGREEprep and GAPI assessments highlight a greener profile compared to literature reports, which represents a smart strategy for ...
Rafael O. Martins   +9 more
wiley   +1 more source

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